Best Selenium Supplements for Immune Support of 2026

Get immune system support, healthy blood flow, and antioxidant support with Pure Encapsulations Selenium Supplement. It helps protect normal cell function, promotes healthy blood flow, and scavenge free radicals. The supplement is made with premium ingredients and is free from wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

Nature's Bounty Selenium Tablets provide support for the prostate and immune system with a clinically studied dosage of 200 mcg of Selenium. These vegetarian-friendly tablets offer the convenience of just one tablet a day. Selenium is known for its benefits in maintaining a healthy prostate and boosting the immune system. With Nature's Bounty Selenium Tablets, you can easily incorporate this essential mineral into your daily routine to support your overall health and well-being.

The Bronson Selenium 200 mcg is a yeast-free chelated amino acid complex that provides essential micronutrient selenium for immune system, thyroid and metabolism support. Albion Minerals chelated technology ensures superior absorption, stability, quality and easy digestion. It is laboratory tested Non-GMO, Gluten Free, Soy Free supplement in 250 vegetarian capsules. Bronson Vitamins have been a trusted brand since 1960, recommended by top medical professionals.

The Micro Ingredients Selenium Softgels provide a highly absorbable form of selenium called L-Selenomethionine, which your body easily recognizes and uses to maintain overall health. Each softgel is combined with coconut oil to help your body absorb the nutrient more efficiently, so you get the most benefit from each dose. With 500 softgels in a pouch, you have a convenient one-a-day supply that supports your energy, immune system, heart, and cellular health. This supplement helps activate glutathione, a powerful antioxidant in your body, helping you stay energized and healthy every day.

Global Healing Selenium Supplement with Organic Ingredients is a powerful antioxidant that defends against free radicals to protect normal cell function, maintain cardiovascular health, and support a healthy thyroid and immune system. The organic and vegan capsules are made from certified organic mustard seeds for maximum absorption and are free from gluten, soy, dairy, GMOs, sugar, artificial flavors, synthetic dyes, and toxic fillers. Manufactured in the USA in a cGMP certified facility, the supplement comes with a 30-day guarantee.

Bronson Basics Selenium provides 200mcg of Selenium per tablet to support a healthy immune system and antioxidant health. The quality selenium supplement is Non-GMO, Gluten-Free and Soy-Free. Taking the supplement ensures that users receive enough of this important mineral that may not be available in food sources due to location and soil conditions. Bronson Basics Selenium is manufactured in-house at their state-of-the-art facility located in Hauppauge, New York, which complies with cGMP Premium Standards. The pioneers of Bronson Vitamins were pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients.

Life Extension Super Selenium Complex is a dietary supplement that contains three forms of selenium and vitamin E. This supplement is designed to promote cellular health and longevity support by helping your body fight against oxidative stress that contributes to the aging process. Selenium may also support healthy thyroid, immune function, brain, and heart health. Made with only the finest raw ingredients with the purity and potency your body deserves, this supplement is non-GMO, gluten-free, and manufactured in the USA.

Support your immune system and thyroid function with Solaray Yeast Free Selenium 200mcg. Its high potency formula provides absorbable selenium in its superior form selenomethionine. Selenium is essential for the healthy functioning of the thyroid gland and may also support a healthy immune system, antioxidant processes, and cellular health. Solaray is committed to a cleaner planet by using 100% post-consumer resin recycled plastic bottles. This vegan and yeast-free supplement is lab verified for potency and purity and made in the USA.

This Yeast-Free Selenium supplement provides antioxidant support and boosts immune system health. The gluten, wheat, dairy, soy, and sugar-free formula is vegan, kosher, and non-GMO. Each tablet contains L-selenomethionine, a yeast-free form of selenium, which is a component of the antioxidant enzyme glutathione peroxidase that helps to fight cell-damaging free-radicals. It also helps recycle Vitamin E, providing additional antioxidant support. Solgar has been committed to quality, health, and well-being for over 70 years, producing supplements made from only the finest raw materials.

Rootcology Selenium Blend is designed to support your thyroid health by combining selenium and myo-inositol, which work together to help maintain proper thyroid function. This supplement also boosts your immune system by providing key nutrients that help your body defend against illness. Additionally, it supports brain health, aiding in mental clarity and focus so you can stay sharp throughout the day. The supplement is free from gluten, dairy, soy, GMOs, and shellfish, making it a clean and safe choice for many users.